Music-leaf turner.



F. W. POSVAR.

MUSIC LEAF TURNER.

APPLICATION FILED JULY 7.1914.

Patented Feb. 9, 1915.

WWI moon THE NORRIS PE TERS C0,. PHOTO-LITHO.. WASHINGTON. D. C.

FRANK TV. POSVAR, OF FEEDER, NEBRASKA.

MUSIC-LEAF TURNER.

Application filed July 7, 1914.

T all whom it may concern:

Be it known that I, FRANK Posvnn, a citizen of the United States, residing at Pender, in the county of Thurston and State of Nebraska, have invented new and useful Improvements in Music-Leaf Turners, of which the following is a specification.

The invention relates to music leaf turners, and more especially to devices of this character for attachment to music stands.

The primary object of the invention is the provision of a music leaf turner of this character wherein the same can be readily adjusted to fit the stand irrespective of the height thereof, and also which can be readily folded when not in use on the detachment thereof from the stand, the turner being designed to turn the sheets of music and is operated by the foot of the user.

' Another object of the invention is the provision of a music leaf turner of this character wherein the same is of novel form and will operate in reverse directions so as 5 to permit the turning of the sheet music either to the right or to the left as the occasion may require, thereby obviating the necessity of fingering the music by hand as is usual.

A further object of the invention is the provision of a music leaf turner which is extremely simple in construction, thoroughly reliable and eficient in operation, readily and easily attached to or detached from the music stand, foldable, and also which is inexpensive in manufacture.

Viith these and other objects in view, the invention consists in the construction, combination and arrangement of parts as will to be hereinafter fully described, illustrated in the accompanying drawing, and pointed out in the claims hereunto appended.

In the drawing: Figure 1 is a perspec tive view of a music stand showing the music leaf turner constructed in accordance with the invention mounted thereon. Fig. 2 is a fragmentary side elevation of the hanger operating rod and the meshing gears pivoted to the hanger and connected to the operating rod respectively, the hanger and operating rod being partly in section. Fig. 3 is a perspective view of the music leaf turner showing the leaf turning arm in lowered position while by dotted lines is shown the treadle folded and by full lines the said treadle in operative posi- Specification of Letters Patent.

Patented Feb. 9, 1915.

Serial No. 849,532.

tion. Fig. 4c is a fragmentary vertical longitudinal sectional view through the operat ing rod showing the extensible sections. Fig. 5' isa fragmentary enlarged detailed top plan view showing one part of the op erating rod in cross section.

Similar reference characters indicate corresponding parts throughout the several views in the drawing.

Referring to the drawing in detail, A designates the vertical adjustable upright, B the foldable legs, and C the foldable music rack of the music stand, which is of the ordinary well-known construction, while D designates generally the music leaf turner hereinafter fully described. The music leaf turner D comprises a vertical hanger bar 5, which is made of preferably squareshaped tubing formed with clamps 6 spaced from each other and adapted for detachable connection with the upright A of the music stand. Adjustably telescoped within the hanger bar 5 is an extension bar 7 formed with a substantially U-shaped bearing 8 projected forwardly therefrom, and in which is journaled the lowermost section 9 of the music leaf operating rod, the sections of which are adj ustably connected to each other in any suitable manner, one telescoping within the other, and held in adjusted position through the medium of binding collars 10, while at the upper end of this operating rod is a knuckle joint 11 which is also connected to a turning crank 12 journaled in a bracket 13 having a clamp 14: for detachable connection with the upright A of the stand.

Near the lower end of the operating rod and fixed thereto is a beveled pinion 15 with which mesh the teeth 16 of a rocking sector 17 supported upon a stud axle or pivot 18 mounted in the bearing 8, the said sector being formed with oppositely extending treadles 19 so that it may be rocked in reverse directions for the turning of the operating shaft in either direction. The crank 12 carries an extensible section 20 which is formed with a right angular music leaf turning arm 21 provided with clips 22 for detachable connection with the sheet of music to be turned when supported upon the rack C of the music stand. It is preferable that the arm adjustable with relation to each other so that it will accommodate the sheet of music irrespective of the size thereof. The foot 21 be made of two sections treadle 19 is formed in two parts with sleeves at their inner ends loosely engaging the stud shaft carrying the sector 17, and these sleeves are notched to engage a lug on thesaid stud shaft so as to lock the same against free rotation in one direction thereon, and in this manner the treadle can be folded when the music leaf turner is not in use.

In the operation of the music leaf turner the operator depresses either of the foot treadles 19, causing the rocking of the sector 17 which through the pinion 15 meshing with the teeth of the sector the operating shaft is rotated, thereby turning the crank 12 which controls the music leaf turning arm 21 so that the music leaf will be turned accordingly.

h'rom the foregoing it is thought that the construction and manner of operation of the device will be clearly understood, and therefore a more extended explanation has been omitted.

What is claimed is 1. A music leaf turner comprising a hanger bar, a bracket, clamps on the hanger bar and bracket and adapted for detachable connection to the upright of a music stand, an operating rod journaled on the hanger bar, a pinion carried by the operating rod, a turning crank ournaled in the bracket, a knuckle joint connection between the crank and operating rod, a music leaf turning arm carried by the crank, and a duplex treadle having gear connection with the pinion and pivotally supported by the said hanger bar.

2. A music leaf turner comprising a hanger bar, a bracket, clamps on the hanger bar and bracket and adapted for detachable connection to the upright of a music stand,

FRANK /V. POSVAR.

Witnesses:

DORA HINRIOH, JOSEPH E. POSVAR.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, I). G. 

